22495643 has 2 divisors, whose sum is σ = 22495644. Its totient is φ = 22495642.

The previous prime is 22495609. The next prime is 22495673. The reversal of 22495643 is 34659422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22495643 - 2¹⁸ = 22233499 is a prime.

It is not a weakly prime, because it can be changed into another prime (22495673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11247821 + 11247822.

It is an arithmetic number, because the mean of its divisors is an integer number (11247822).

Almost surely, 2^22495643 is an apocalyptic number.

22495643 is a deficient number, since it is larger than the sum of its proper divisors (1).

22495643 is an equidigital number, since it uses as much as digits as its factorization.

22495643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 22495643 is about 4742.9571998912. The cubic root of 22495643 is about 282.2925848480.

The spelling of 22495643 in words is "twenty-two million, four hundred ninety-five thousand, six hundred forty-three".